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Cellular compartment
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1 reference results for: Cell compartment
Wikipedia
Cellular compartments in cell biology comprise all closed parts within a cell whose lumen is usually surrounded by a single or double lipid layer membrane. Most organelles are compartments like mitochondria, chloroplasts (in photosynthetic organisms), peroxisomes, lysosomes, the endoplasmic reticulum, the cell nucleus or the Golgi apparatus. Smaller elements like vesicles, and sometimes even microtubules can also be counted as compartments.

Types

In general there are 3 main cellular compartments, they are: 1. The nuclear compartment comprising the nucleus 2. The intercisternal space which comprises the space between the membranes of the endoplasmic reticulum (which is continuous with the nuclear envelope) 3. The cytosol

Function

Within the membrane-bound compartments, different intracellular pH, different enzyme systems, and other differences are isolated. This enables the cell to carry out different metabolic activities at the same time. With mitochondria, the cytosol has an oxidising atmosphere which converts NADH to NAD+. With these cases, the compartmentation is physical. For protein synthesis, all the organs used for it are relatively near one another, the nucleolus makes the ribosomes which synthesize the proteins, the Rough ER is near the nucleus as well. The golgi body is also near the Rough ER for packaging and redistributing.

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Last updated on Friday January 25, 2008 at 12:50:52 PST (GMT -0800)
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